Redundant
Merge remote-tracking branch 'mongodb/master'
Update source/reference/method/db.collection.update.txt
DOCS-1099: fixing get/set balancer state problem
merge: typo fixes
merge: comma fix
DOCS-964 Fix agg operator return value type to boolean instead of integer
merge: DOCS-964
DOCS-859: correction
Update source/reference/command/enableSharding.txt

Pretty sure the description here is wrong - need to provide the database name to enableSharding (it's an admin command that gets run against the admin database).
Minor typo
Minor: indentation
merge: typos
DOCS-121: shell line editing and other 2.2 features
DOCS-1089: clarification to replica set initiation process